An aeroelastic analysis of the Darrieus wind turbine PublicDeposited

Descriptions

The stability of small oscillations of the troposkeinshaped
blade used on Darrieus wind turbines is investigated.
The blade is assumed to be attached to a perfectly rigid rotor
shaft and spinning in still air. Linear equations of motion are
derived which include the effects of in-plane, out-of-plane,
and torsional stiffness, mass and aerodynamic center offsets,
and the aerodynamic wake. Results presented include the freevibration
characteristics of the rotating blade, stability of
the blade rotating in air, and the effects of mass density,
mass center offset, and stiffness parameters on the flutter
rotation rates. All results are presented in dimensionless
form, hence apply to a family of blades.